Crane with tilt-up boom



Feb. 5, 1963 E. E. CRILE 3,076,559

smug WITH TILT-UP BOOM 4 Sheets-Sheet 1 Filed June 21, 1961 v8 08 8 @N Nm N r r mt mm) m 3 mm plw' 1 l H will. l

2 2 o N :N 3: 9w

R \aww INVENTOR. EUGENE E. CRILE BY Feb. 5, 1963 E. E. CRILE CRANE WITHTILI'UP BOOM 4 Sheets-Sheet 2 Filed June 21, 1961 a "INVENTOR. EUGENEE.,CRILE Feb. 5, 1963 E. E. CRILE CRANE WITH TILT-UP BOOM Filed June 21,1961 4 Sheets-Sheet 3 INVEN TOR. EUGENE E. CRILE Feb. 5, 1963 1:. E.cmuz 3,076,559

CRANE WIEIH TILT-UP BOOM Filed June 21,, 1961 -4 Sheets-Sheet 4INVENTOR." EUGENE E. CRILE QNM United States Patent 3,076,559 I CRANEWITH TILT-UP BOOM Eugene E. Crile, 1619 W. Mariette Ave., Phoenix, FiledJune 21, 1961, Ser. No. 118,547

13 Claims. (Cl. 212-56) This invention relates to a crane and moreparticularly to acrane for use on trucks for loading and unloading thesame, said crane being adapted to handle cubes of concrete blocks orother material and having its entire motivating and power mechanism on aboom supporting frame; said boom supporting frame being pivotallymounted in elevated position on a column member and having a horizontalaxis means pivotally supporting said boom, which is adapted to pivotupwardly about said horizontal axis means.

The invention, asdisclosed herein, embodies an improvement over thecrane disclosed in my co-pending application, Serial Number 852,424,filed November 12, 1959, for a crane.

Cranes, of conventional prior art construction, which are employed toload and unload flatbed trucks, generally include mechanism below thetruck bed for actuating the crane and providing power for its operation.These cranes require a variety of mechanism which must be installed onthe truck and operable in connection with the chassis thereof.Furthermore, such equipment is so located that it is ditficult toservice and maintain. Additionally, such equipmentis ordinarily bestsuited to an installation on a relatively heavy truck.

The foregoing prior art structures are generally expensive from astandpoint of initial investment and further require installationfacilities which are expensive.

Accordingly, it is an object of the present invention to provide a cranefor loading and unloading trucks which may be installed on the uppersurface of a truck bed without requiring any actuating means below theupper surface of the truck'bed.

Another object of the invention is to provide a crane for loading andunloading truck beds, which is provided with a vertical column having aswingable boom sup porting frame thereon; said boom supporting framehaving substantially horizontal axis means pivotally supporting a boomwhich is adapted tobe tilted upwardly into an inclined position relativeto the horizontal; said frame carrying means for powering hoistingmechanism of the crane; boom swinging mechanism of the crane; and isalso disposed to provide power for tilting the boom upwardly into aninclined position relative to the horizontal.

Another object of the invention is to provide a crane having a boomsupporting frame swingable on a' substantially vertical axis andcarrying an engine which operates hydraulic power means which furnishespower for hoisting equipment on a boomv pivotally mounted to said frameon a horizontal axis and, additionally, provides power to swing the boomaround a vertical axis and to elevate it to an inclined positionrelative to the horizontal.

Another object of the invention is to provide a crane for loading andunloading flatbed trucks having a substantially vertical column on whicha boom supporting frame is pivotally mounted in elevated position toswing about a substantially vertical axis, and whereon a boom ispivotally mounted on said frame; said frame extending from said columnmember in a direction opposite to that of the boom whereby power meansmounted on the frame may tend to counterbalance some of the weight ofsaid boom.

Another object of the invention is to provide a crane for loading andunloading flatbed trucks which is very simple and economical ofconstruction, installation and maintenance.

Another object of the invention is to provide a crane for loading andunloading trucks having a novel power means totally supported inelevated position on a boom supporting frame near the upper end of avertical column which is provided with a base for supporting the craneon a truck bed, whereby the boom, power means and boom supporting frameall swing above articles loaded above the crane face.

A further object of the invention is to provide a crane having a novelpower mechanism mounted on a vertical column for swinging a crane boomabout a vertical axis; for pivoting the boom about a substantiallyhorizontal axis; for moving a carriage longitudinally of said boom andfor actuating hoisting means relative to said carriage.

Further objects and advantages of the invention may be apparent from thefollowing specifiction, appended claims, and accompanying drawings, inwhich:

FIG. 1 is a side elevationalview of acrane constructed in accordancewith the present invention;

FIG. 2 is an enlarged top or plan view taken from the line 2-2 of FIG.1;

FIG. 3 is an enlarged fragmentary sectional view taken from the line 3-3of FIG. 1;

FIG. 4 is anenlarged sectional view taken from the line 4 -4 of FIG. 1

FIG. 5 I, is an enlarged fragmentary side elevational view, similar toFIG. 1, but showing the structure disposed in the opposite direction andillustrating, by broken lines, an inclined elevated disposition of thecrane and boom:

FIG. 6 is a fragmentary sectional view taken from the line 6'-6 of FIG.5;

FIG. 7 is an enlarged end view of the crane and boom taken from the line7--7 of FIG. 1;

FIG. 8 is an enlarged fragmentary sectional view of the outrigger bracesof the base structure of the crane, in accordance with the invention;and

FIG. 9 is an enlarged fragmentary sectional view taken from the line '99of FIG. 1, omitting parts and portions of the crane and boom structurefrom the view.

As shown in FIG. 1 of the drawings, the crane of the invention isprovided with a base 10, adapted to support the crane on an uppersurface 12 of a truck bed 14. secure horizontally disposed tubularmembers 18, of the base 10 onto the upper surface 12 of the truck bed14.

The base is substantially T-shaped having a pair of oppositely disposedtubular members 18 and a horizontal member 20, normally disposed atrightangles to the members18, forming a generally T-shaped basestructure. Bolts 22 secure the member 20 onto the truck bed 14 andangular braces 24 and 26 interconnect the outermost portions of the basemembers 18 and 20' with a substantially vertical column member 28. Thisvertical column member 28, at its lower end, is coupled to the basemembers 18 and 20 and is fixed thereto by welding or other suitablemeans, as desired.

As shown in FIG. 9 of the drawings, column 28 is pro vided with anannular shelf plate 30 on which the inner raceof a roller bearing 32 issupported. This roller bearing is provided with an outer race 34 overwhich a sleeve shoulder ring 36 is engaged. Secured to this shoulderring 36 is a tubular frame element 38 of a boom supporting frame 40,shown in FIG. 1, which will be hereinafter described in detail.

Positioned between the shoulder ring 36 and the shelf plate 30 is a dustseal 41, which may be made of felt or any other suitable material.

Secured to the normally upper end of the tubular member 38 is anothershoulder ring 42 which is similar to the ring 36, and this shoulder ring42 engages an outer race 44, of a bearing 46. The inner race 48, of thebearing 46, engages the outer side of the column member 28 near itsupper end and a plate 50 is abutted to the upper end of the inner race48 to maintain proper axial loading of the bearing 46. This plate 50,together with a sprocket 52, are secured to the column 28 by means ofscrews 54, which are screwthreaded into the upper end of the column 28.

Internally of the column 28, at its upper end, is a flat ring 56,serving as a compressive stiffener internally of the race 48, of thebearing 46. This flat ring 56 prevents a tendency, of the upper end ofthe tubular column member 28, to deflect under high loading, as will behereinafter described.

Secured to the tubular frame member 38 are members 58, of the boomsupporting frame 40, these members 58 form lower frame members whichsupport the power means 60 of the crane, as will be hereinafterdescribed. Upper frame members 62 are welded or otherwise secured to thetubular frame member 38 and projecting from opposite sides of thesemembers 62 are boom supporting trunnions 64 and 66 which are disposed toprovide for a pivotal mounting of the crane boom 68, on a substantiallyhorizontal axis, as will be hereinafter described.

Carried by the frame members 58 and 62, in connection with the tubularframe member 38, is a generally boxshaped frame structure 70, in which amotor 72 is supported. This motor 72 drives a hydraulic pump 74,communicating with an accumulator 76 and a solenoid valve assembly 7 8,electrically coupled to a remote control panel 80 by means of a flexibleconductor cord 82, as will be hereinafter described.

The boom 68 is generally I-beam in cross-section shaped and is providedat its rearward end with lap plates 84, on opposite sides thereof, whichlap plates 84 form a bifurcated section 86, as shown in FIG. 3 of thedrawings, whereby the rearward end of the boom is provided with forkedmembers 88 and 90 carrying bearings 92 and 94, engaging the trunions 64and 66. The bifurcated portion 86, of the boom 68, partially surroundsthe sprocket 52 and permits the boom 68 to tilt upwardly into a brokenline position A, as shown in FIG. of the drawings, while being supportedon the trunnions 64 and 66, which are pivotally supported on a verticalaxis, passing through the centers of the bearings 33 and 46, whichpivotally support the tubular frame member 38, hereinbefore described.

The lap plates 84, at their upper edges, are interconnected by a heavyplate 96, whereby the lap plates 84 and the plate 96, together with thetransverse plate 98, are welded to the rearward end of the I-beamstructure of the boom 68 to provide a cantilever support therefor, andto permit central mounting of a hydraulic cylinder 100, which actuatesthe boom 68 about the axes of the trunnions 64 and 66, as indicated bybroken lines in FIG. 5 of the drawings.

-The hydraulic cylinder 100, at one end thereof, is pivotally mounted ona pin 102, which extends through a bracket 104, welded or otherwisesecured to the ring 36, carried by the bearing 33 and tubular framemember 38. Thus, the lower end of the cylinder 100, as shown in FIG. 5of the drawings, is pivotally mounted in connection with the boomsupporting frame 40, which pivots about a substantially vertical axis,as hereinbefore described. The hydraulic cylinder 100 is provided with areciprocal plunger 104 having a bearing 106 at its extended end. Thisbearing 106 is pivotally mounted on a pin 108, straddled by brackets110, which are secured to the plate 96, hereinbefore described. The pin108 extends through these brackets 110 and is in double shear withrespect thereto, all as shown best in FIG. 2 of the drawings. It will beseen that the plate 96 is provided with an opening 112 through which theplunger 104 extends, and that this opening 112 is sufficiently long topermit the angular play of the plunger 104 therein as the boom 68 ispivoted from the solid line position, as shown in FIG. 5, to the brokenline position shown therein.

The hydraulic cylinder is coupled by conventional flexible conduits toone of the solenoid valves 78, which receives hydraulic pressure fluidfrom the accumulator 76, as energized by the pump 74, driven by themotor 72.

As shown in FIG. 4 of the drawings, a hoist carriage 114 is providedwith rollers 116 and 118, which roll on upper surfaces 120 and .122, ofthe lower flanges of the I-beam structure of the boom 68. These rollers1 16 and 118 are mounted on axle bolts 124 and 126, respectively, whichsecure them to upwardly extending arms 128 and 130, of the carriage 114.Interconnecting the arms 128 and 130 is a cross member 132, on which asheave clevis 134 is pivotally mounted by means of a pin 136.

Pivotally mounted on a sheave clevis 134 are sheaves 138 and 140, thesesheaves .138 and 140 are pivotally supported on the sheave clevis 134 byaxle pins 142 and 144, respectively. The cable 146 extends over thesheaves 138 and 140 and an intermediate portion 148, of the cable 146,extends over a hoisting sheave 150, to which is pivotally connected asuitable bracket 152. This bracket 152 may support lifting forks or anyother desirable hoisting mechanism, which may be adapted to handle cubesof concrete blocks or the like, whereby the crane of the presentinvention may load or unload cubes of concrete blocks or other materialsrelative to the upper surface 12 of the truck bed, shown in FIG. 1 ofthe drawings.

One end 154 of the cable 146 is secured to a stationary bracket 156mounted on the boom 68 at its end near the hydraulic cylinder 100, asshown best in FIGS. 1 and 5 of the drawings. The cable 146 extends overa sheave 158 pivotally mounted on a pin 160 carried by brackets 162 and164, at the outer end of the boom 68. The cable 146 passes upwardly fromthe sheave 158 over a sheave 166 of a multiple sheave 168, pivotallymounted on a. shaft 170 carried between the brackets 164 and anotherbracket 172 on the outboard end of the boom 68.

The cable 146 extends, as shown in FIG. 2 of the drawings, over themultiple sheave 168 and over another multiple sheave 174, carried by aplunger 176, of a hydraulic cylinder 178, which is pivotally mounted bymeans of a pin 180, as shown best in FIG. 2 of the draw ings. This pinis disposed through a bracket 182 welded or otherwise secured to theupper surface of the plate 96, hereinbefore described.

It will be seen from FIG. 2 of the drawings, that the opposite end ofthe cable 146, from its end 154, is secured to a clevis 184, in whichthe multiple sheave 174 is mounted. Thus, this opposite end 186, of thecable 146, is held by a fixture 188 on the side of the clevis 184,carried by the plunger 176, of the hydraulic cylinder 178.

This hydraulic cylinder 178 may be energized in a direction to retractthe plunger 176 by operating one of the switches on the remote controlpanel 80, which operates a respective member of the solenoid valveassembly 78, to conduct hydraulic pressure from the accumulator 76through a conventional flexible conduit to the hydraulic cylinder 178,as will be hereinafter described in detail.

A cable 190, at its end 192, is secured to the carriage 114, in order tomove it in one direction longitudinally of the boom 68.

The cable 190, from its end 192, extends over a sheave 196, as shown inFIG. 5 of the drawings, and extends over another multiple sheave 198,pivotally mounted on a pin 200, supported in brackets 202, on the top ofthe boom 68, all as shown best in FIG. 5 of the drawings. The cable 190extends from the multiple sheave 198 over another multiple sheave 204,carried by a clevis 206, secured to a plunger 208, of a double endedhydraulic cylinder 210, which is held at its opposite ends by brackets209 and 211, fixed to the boom 68.

An opposite end 212, of the cable 190, from its end 192, connected tothe upper surface of the boom 68, at 214.

The plunger 208, of the cylinder 21%, is provided with an integralplunger portion 216, extending from the opposite end of the cylinder 210and mounted on this plunger 216 is a clevis 218 carrying a multiplesheave 220, over which a cable 221 is engaged, this cable also passesover a multiple sheave 222 and has an end 224 fixed to a frame member226, at the outer end of the boom 68.

As shown in FIG. 7, the frame 226 is provided with an opening 228through which the cable 221 extends from the multiple sheave 222 andthat this opening 228, as shown in FIG. 1 of the drawings, is above theupper surface 69, of the boom 68. Likewise, an opening 230 is providedin the frame 226 to provide a passage for the cable 146 over themultiple sheave 168.

An opening 232, near the lower portion of the frame 226, provides apassage for the cable 221, as it extends toward its end 234, which isfixed to the carriage 114.

. It will be seen that the plungers 288 and 216 are extended fromopposite ends of the hydraulic cylinder 210 and are coupled together sothat they are reciprocal, relative to each other. As for example, whenthe plunger 216 is extended from the cylinder 210, the plunger 208 isretracted and when the plunger 208 is extended from the cylinder 210,the plunger 216 is retracted. Thus, the carriage 114 is movedreciprocally along the boom 68.

Due to the multiple sheaves 198, 264, 220, and 222, the short stroke ofthe plungers 268 and 216 may be amplified sufficiently, whereby thecarriage 114 may be moved the full length of the boom 68. This conditionis also true of the operation of cylinder 178 and its plunger 176, sincethe multiple sheaves 174 and 168, with relation to the cable 146,permits the extension or retraction of the middle portion 148 of thecable 146 in order to raise or lower the clevis 152 and sheave 150 aconsiderable distance.

As shown in FIGS. 2, 3, and 5, the sprocket 52 is engaged by a chain 236and opposite ends 238 and 240, of this chain 236, are pinned to a block242, carried by the bracket 62, of the boom supporting frame 40.Sprockets 244 and 246, pivotally mounted on clevis pins 248 and 250,engage intermediate portions of the chain 236. The pins 248 and 250 arecarried by the clevises 252 and 254, respectively, which are carried byplungers 256 and 258, of hydraulic cylinders 269 and .262, respectively. The hydraulic cylinders 260 and 262 are mounted on pins 264 and266 respectively, which extend through clevis portions 268 and 270 ofthe cylinders 260 and 262, respectively.

The pins 264 and 266 also extend through brackets 272 and 274,respectively, which are fixed to the rear member 41 of the boomsupporting frame 40, all as shown best in FIGS. 1 and 3 of the drawings.

The hydraulic cylinders 260 and 262 are energized inversely of eachother, so that, as for example, the cylinder 266 may be energized toretract its plunger 256 while the hydraulic cylinder 262 may beenergized to permit its plunger 258 to be extended. In this manner, thesprocket 52 resists torque reaction of the chain 236 and causes the boomsupporting frame 40 to rotate about the axes of the bearings 33 and 46,whereby the boom 68, together with the boom supporting frame, maypivotally be swung about the center of the column 28.

The hydraulic cylinders 260 and 262 are coupled by conventional flexibleconduits to the solenoid valve assembly 78, which is controlled by theswitches on the control panel 80.

As shown in FIGS. 1 and 8 of the drawings, the tubular members 18, ofthe crane base 10, are provided with 6 telescopically extendable tubularmembers 19, having vertically disposed legs 21, removably securedbetween brackets 23 by pins 25. Feet 27 on the lower ends of the legs21, provide an outboard support for the frame 10 to prevent tilting ofthe truck bed 12 when the crane picks up a load laterally thereof.

It will be seen that removal of the pins 25 will permit the legs 21 tobe stowed in the hollow tubular member 19 and that it may betelescopically retracted into the respective tubular member 18, so thatthe outboard may readily and conveniently be compactly stowed with thebase 10 of the crane when not in use or in transit.

In operation, it will be seen that the crane, according to the presentinvention, may be secured to the upper surface 12 of a truck bed andthat no power equipment, in connection with the truck bed is requiredfor operation of the crane, since the entire power source for the craneis containedin the boom supporting frame structure 40, as hereinbeforedescribed.

Further, the boom, boom supporting frame and power means all swing abovea load carried by the crane above the lower portion of the crane base.

The remote control is provided with a variety of buttons for use inoperating and controlling all of the principal elements of the crane.The motor 72 is provided with a conventional starter, and a starterbutton on the control panel 139, permits the operator to start the motor72 which operates the hydraulic pump 74 and creates fluid pressure inthe accumulator 76, which pressure fluid is controlled by a solenoidvalve assembly, electrically connected with a plurality of switchesdisposed to control energization of the hydraulic cylinders 186, 173,216,.

264 and 262, as hereinbefore described.

It will be understood that equivalent power means may be provided andcarried by the boom supporting frame 40, as desired. For example,electrical equipment may be utilized instead of hydraulic equipment butsuch equipment may be carried on the boom supporting frame 46, so thatthe entire crane assembly may be independent of any power mechanismcarried by the truck bed 14.

When it is desired to start the engine 72, one of the buttons on thecontrol panel 80 is pressed and when hydraulic pressure has been createdin the accumulator 76, one of the buttons may be pressed to energize asolenoid valve in the assembly '78 to conduct pressure fluid to thecylinder 100, which then extends its plunger 164 and pivots the boom 68upwardly about the axes of the trunnions 64 and 66, to a desired degree,whereby the carriage 114 may be elevated to a position higher than thatnormally attained when the boom 68 is disposed horizontally, as shown inFIG. 1 of the drawings.

When the boom is in horizontal position or elevated to any desiredangle, it may be swung around the axis of the bearings 33 and 46 to anydesired degree, by energizing the respective hydraulic cylinders 2 60and 262, in accordance with a control on the panel 80 and operation ofrespective solenoid valve of the assembly 78.

When it is desired to actuate the carriage 114 longitudinally of theboom 68, a switch is operated on the control panel 80, in accordancewith the direction that is desired to move the carriage 114. Thus, thehydraulic cylinder 216 is appropriately energized depending upon whichdirection the plungers 298 and 216 must move, as hereinbefore described.The abutments 209 and 211 hold the hydraulic cylinder 21%) in fixedposition longitudinally of the boom 68, while the respective cables 190and 221 cause the carriage to traverse longitudinally of the boom 63.The clevis 152 supports load and the sheaves 138 and 140 merely supportthe loop 148 of the cable 146, while the carriage traverses the boom 68to a desired position longitudinally thereof.

When it is desired to hoist the cable 152, the hydraulic cylinder 173 isenergized by pressing an appropriate switch button on the control panel80. This causes retraction of the plunger 176 and retraction of thecable. 146, as

7 hereinbefore described, thereby shortening the intermediate section148 of the cable 146 and raising the clevis 152.

It will be understood that a suitable hoist rack or hook assembly,secured to the clevis 152, is heavy enough so that it will, bygravitational force, extend the intermediate portion 148 of the cable146, when the hydraulic cylinder 178 is de-energized. Thus, its plunger17% is extended by tension on the intermediate portion 143, of the cable14-6 and it will be understood that the sheaves 138 and 140 provide forlowering support of the cable 146 above its intermediate portion 148.

It will be apparent to those skilled in the art that the crane of thepresent invention embodies a novel combination of a vertical columnhaving a boom supporting frame pivotally mounted on a substantiallyvertical axis and a tilting boom pivotally mounted on the boomsupporting frame on a substantially horizontal axis. This overallcombination permits the installation of the crane on a flatbed truckwithout supplying any power from the truck to the crane, since all ofthe power equipment is carried by the boom supporting frame 40, ashereinbefore described. Additionally, the tilt-up function of the boom68 provides extreme versatility of the crane, since it may be used toload and unload the truck bed 12 with cubes of concrete blocks or othermaterials or the boom may be tilted upwardly so that such materials maybe deposited in an elevated position above the truck bed level.Additionally, various articles may be unloaded from an elevated positionabove the truck bed level and deposited on the truck bed or the groundas desired.

It will be obvious to those skilled in the art that variousmodifications of the present invention may be resorted to in a mannerlimited only by a just interpretation of the following claims.

I claim:

1. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported on said column member near said upper end thereof; a boomsupporting frame movably mounted on said hearing means and swingableabout a substantially vertical axis thereof; a boom pivotally mounted onsaid boom supporting frame; pivot means having substantially horizontalaxis mounting said boom on said frames at one side of said verticalaxis; a motor on said frame; a hydraulic pump driven thereby; actuatingmeans responsive to hydraulic pressure and supported by said frame onthe opposite side of said vertical axis thereof from said pivot means,said actuating means disposed to force said boom to pivot upwardly aboutsaid substantially horizontal axis of said pivot means; and conduitmeans for conducting hydraulic pressure fluid intercommunicating withsaid pump and said actuating means.

2. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported on said column member near said upper end thereof; a boomsupporting frame movably mounted on said bearing means and swingableabout a substantially vertical axis thereof; a boom pivotally mounted onsaid boom supporting frame; pivot means having a substantiallyhorizontal axis mounting said boom on said frame at one side of saidvertical axis; a motor on said frame; a hydraulic pump driven thereby;actuating means responsive to hydraulic pressure and supported by saidframe on the opposite side of said vertical axis thereof from said pivotmeans, said actuating means disposed to force said boom to pivotupwardly about said substantially horizontal axis of said pivot means;and conduit means for conducting hydraulic pressure fluidintercommunicating with said pump and said actuating means; said conduitmeans comprising a pressure fluid accumulator coupled to said pump;

8 and solenoid valve means interconnecting said accumulator and saidconduit means.

3 In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported on said column member near said upper end thereof; a boomsupporting frame movably mounted on said bearing means and swingableabout a substantially vertical axis thereof; a boom pivotally mounted onsaid boom supporting frame; pivot means having a substantiallyhorizontal axis mounting said boom on said frame at one side of saidvertical axis; a motor on said frame; a hydraulic pump driven thereby;actuating means responsive to hydraulic pressure and supported by saidframe on the opposite side of said vertical axis thereof from said pivotmeans, said actuating means disposed to force said boom to pivotupwardly about said substantially horizontal axis of said pivot means;and conduit means for conducing hydraulic pressure fluidintercommunicating with said pump and said actuating means; said conduitmeans comprising a pressure fluid accumulator coupled to said pump; andsolenoid valve means interconnecting said accumulator and said conduitmeans; and remote control switching means for actuating said solenoidvalve means.

4. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; a boom supportingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having a substantially horizontalaxis mounting said boom on said frame; a motor on said frame; ahydraulic pump driven thereby; first actuating means responsive tohydraulic pressure supported by said frame and disposed to force saidboom to pivot upwardly about said substantially horizontal axis of saidpivot means; and conduit means for conducting hydraulic pressure fluidintercommunicating with said pump and said first actuating means;carriage means movable longitudinally of said boom; second actuatingmeans, responsive to hydraulic pressure fluid communicating with saidpump, said second actuating means disposed on said boom to move saidcarriage longitudinally thereof.

5. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; a boom supportingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having a substantially horizontalaxis mounting said boom on said frame; a motor on said frame; ahydraulic pump driven thereby; first actuating means responsive tohydraulic pressure supported by said frame and disposed to force saidboom to pivot upwardly about said substantially horizontal axis of saidpivot means; and conduit means for conducting hydraulic pressure fluidintercommunicating with said pump and said first actuating means;carriage means movable longitudinally of said boom; second actuatingmeans, responsive to hydraulic pressure fluid communicating with saidpump, said second actuating means disposed on said boom to move saidcarriage longitudinally thereof; hoist cable and sheave means on saidboom and said carriage and vertically movably depending from saidcarriage; and third actuating means, responsive to hydraulic pressurefluid communicating with said pump, said third actuating means disposedon said boom to retract loaded cables of said cable and sheave meansvertically below said carriage.

6. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said col- 9, umn member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; a boom supportingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having a substantially horizontalaxis mounting said boom on said frame; a motor on said frame; ahydraulic pump driven thereby; first actuating means responsive tohydraulic pressure supported by said frame and disposed to force saidboom to pivot upwardly about said substantially horizontal axis of saidpivot means; conduit means for conducting hydraulic pressure fluidintercommunicating with said pump and said first actuating means; andsecond actuating means coupled to said column and said frame, andresponsive to hydraulic pressure fluid communicating with said pump,said second actuating means disposed to pivot said frame about asubstantially vertical axis of said bearing means.

7. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; a boom sup portingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having a substantially horizontalaxis pivotally mounting said boom on said frame; a motor on said frame;a power delivery means driven thereby; actuating means responsive topower from said power delivery means supported by said frame anddisposed to force said boom to pivot upwardly about said substantiallyhorizontal axis of said pivot means; and power conducting means forconducting power intercommunicating with said power delivery means andsaid actuating means; a bifurcated portion of said boom having forksstraddling said upper end of said column member; and rotary actuatingmeans coupled to said upper end between said forks and disposed torotate said frame about said vertical axis; ends of said forks beingpivotally mounted on said pivot means.

8. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; a boom supportingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having a substantially horizontalaxis pivotally mounting said boom on said frame; a motor on said frame;a power delivery means driven thereby; actuating means responsive topower from said power delivery means supported by said frame anddisposed to force said boom to pivot upwardly about said substantiallyhorizontal axis of said pivot means; and power conducting means forconducting power intercommunicating with said power delivery means andsaid actuating means; and remote control switching means for controllingsaid power conducting means.

9. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; a boom supportingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having a substantially horizontalaxis pivotally mounting said boom on said frame; a motor on said frame;a power delivery means driven thereby; first actuating means responsiveto power from said power delivery means supported by said frame anddisposed to force said boom to pivot upwardly about said substantiallyhorizontal axis of said pivot means; and powerconducting means forconducting power intercommunicating with said power delivery means andsaid first actuating means; carriage means movable longitudinally ofsaid boom; second actuating means, responsive to power from said powerdelivery means, said second actuating means disposed on said boom tomove said carriage longitudinally thereof; said boom, boom frame,carriage and said motor, disposed to swing above articles carried bysaid frame above the lower portion of said base.

10. in a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; ,a boom supportingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having a substantially horizontalaxis pivotally mounting said boom on said frame; a motor on said frame;a power delivery means driven thereby; first actuating means responsiveto power from said power delivery means supported by said frame anddisposed to force said boom to pivot upwardly about said substantiallyhorizontal axis of said pivot means; and power conducting means forconducting power inter-communicating with said power delivery means andsaid first actuating means; carriage means movable longitudinally ofsaid boom; second actuating means, responsive to power from said powerdelivery means, said second actuating means disposed on said boom tomove said carriage longitudinally thereof; hoist cable and sheave meanson said boom and said carriage and vertically movably depending fromsaid carriage and third actuating means, responsive to power from saidpower delivery means, said third actuating means disposed on said boomto retract loaded cables of said cable and sheave means vertically belowsaid carriage.

11. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; a boom supportingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having a substantially horizontalaxis pivotally mounting said boom on said frame; a motor on said frame;a power delivery means driven thereby; first actuating means responsiveto power from said power delivery means supported by said frame anddisposed to force said boom to pivot upwardly about said substantiallyhorizontal axis of said pivot means; and power conducting means forconducting power intercommunicating with said power delivery means andsaid first actuating means; and second actuating means coupled to saidcolumn and said frame; and responsive to power from said power deliverymeans, said second actuating means disposed to pivot said frame about asubstantially vertical axis of said bearing means.

12. In a crane, the combination of: an upstanding coltunn member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; a boom supportingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having substantially horizontal axismounting said boom on said frame; a motor on said frame; a hydraulicpump driven thereby; actuating means responsive to hydraulic pressuresupported by said frame and disposed to force said boom to pivotupwardly about said substantially horizontal axis of said pivot-means;and

conduit means for conducting hydraulic pressure fluid intercommunicatingwith said pump and said third means; a bifurcated portion of said boomhaving forks straddling said upper end of said column member; and rotaryactuating means coupled to said upper end between said forks anddisposed to rotate said frame about said vertical axis; ends of saidforks being mounted on said pivot means; said boom, boom frame and saidmotor, disposed to swing above articles carried by said crane above thelower portion of said base.

13. In a crane, the combination of: an upstanding column member; a basetherefor; an upper end of said column member disposed in elevatedposition above said base; substantially vertical axis bearing meanssupported near said upper end of said column member; a boom supportingframe movably mounted on said bearing means and swingable about asubstantially vertical axis thereof; a boom pivotally mounted on saidboom supporting frame; pivot means having a substantially horizontalaxis pivotally mounting said boom on said frame; a motor on said frame;a power delivery means driven thereby; actuating means responsive topower from said power delivery means supported by said frame anddisposed to force said boom to pivot upwardly about said substantiallyhorizontal axis of said pivot means; and power conducting means forconducting power intercommunicating with said power delivery means andsaid actuating means; a bifurcated portion of said boom having forksstraddling said upper end of said column member; and rotary actuatingmeans coupled to said upper end between said forks and disposed torotate said frame about said vertical axis; ends of said forks beingmounted on said pivot means; said boom, boom frame and said motor,disposed to swing above articles carried by said crane above the lowerportion of said base.

References Cited in the file of this patent UNITED STATES PATENTS2,082,017 McClain June 1, 1937 2,272,949 Kidder Feb. 10, 1942 2,382,299Deiters Aug. 14, 1945 2,798,622 Kelly et al July 9, 1957 2,794,557 VeroJune 4, 1957 2,928,493 Clements Mar. 15, 1960 2,993,605 Smith July 25,196 1

1. IN A CRANE, THE COMBINATION OF: AN UPSTANDING COLUMN MEMBER; A BASETHEREFOR; AN UPPER END OF SAID COLUMN MEMBER DISPOSED IN ELEVATEDPOSITION ABOVE SAID BASE; SUBSTANTIALLY VERTICAL AXIS BEARING MEANSSUPPORTED ON SAID COLUMN MEMBER NEAR SAID UPPER END THEREOF; A BOOMSUPPORTING FRAME MOVABLY MOUNTED ON SAID BEARING MEANS AND SWINGABLEABOUT A SUBSTANTIALLY VERTICAL AXIS THEREOF; A BOOM PIVOTALLY MOUNTED ONSAID BOOM SUPPORTING FRAME; PIVOT MEANS HAVING SUBSTANTIALLY HORIZONTALAXIS MOUNTING SAID BOOM ON SAID FRAMES AT ONE SIDE OF SAID VERTICALAXIS; A MOTOR ON SAID FRAME; A HYDRAULIC PUMP DRIVEN THEREBY; ACTUATINGMEANS RESPONSIVE TO HYDRAULIC PRESSURE AND SUPPORTED BY SAID FRAME ONTHE OPPOSITE SIDE OF SAID VERTICAL AXIS THEREOF FROM SAID PIVOT MEANS,SAID ACTUATING MEANS DISPOSED TO FORCE SAID BOOM TO PIVOT UPWARDLY ABOUTSAID SUBSTANTIALLY HORIZONTAL AXIS OF SAID PIVOT MEANS; AND CONDUITMEANS FOR CONDUCTING HYDRAULIC PRESSURE FLUID INTERCOMMUNICATING WITHSAID PUMP AND SAID ACTUATING MEANS.